Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-02-12 Thread Alexey Budankov
On 12.02.2019 15:27, Arnaldo Carvalho de Melo wrote: > Em Mon, Feb 11, 2019 at 11:17:14PM +0300, Alexey Budankov escreveu: >> This is the rebase to the tip of Arnaldo's perf/core repository. > >> The patch set implements runtime trace compression for record mode and >> trace file

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-02-12 Thread Arnaldo Carvalho de Melo
Em Mon, Feb 11, 2019 at 11:17:14PM +0300, Alexey Budankov escreveu: > This is the rebase to the tip of Arnaldo's perf/core repository. > The patch set implements runtime trace compression for record mode and > trace file decompression for report mode. Zstandard API [1] is used for >

[PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-02-11 Thread Alexey Budankov
This is the rebase to the tip of Arnaldo's perf/core repository. The patch set implements runtime trace compression for record mode and trace file decompression for report mode. Zstandard API [1] is used for compression/decompression of data that come from perf_events kernel data buffers.

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-02-11 Thread Alexey Budankov
On 11.02.2019 16:52, Jiri Olsa wrote: > On Mon, Jan 28, 2019 at 10:02:49AM +0300, Alexey Budankov wrote: >> >> The patch set is for Arnaldo's perf/core repository. > > hi, > got here late and can't apply this anymore.. which revision > (commit id) is this based on? perf/core is moving real

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-02-11 Thread Jiri Olsa
On Mon, Jan 28, 2019 at 10:02:49AM +0300, Alexey Budankov wrote: > > The patch set implements runtime trace compression for record mode and > trace file decompression for report mode. Zstandard API [1] is used for > compression/decompression of data that come from perf_events kernel > data

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-29 Thread Andi Kleen
On Tue, Jan 29, 2019 at 11:45:43AM +0100, Arnaldo Carvalho de Melo wrote: > Em Mon, Jan 28, 2019 at 09:40:28AM +0300, Alexey Budankov escreveu: > > The patch set implements runtime trace compression for record mode and > > trace file decompression for report mode. Zstandard API [1] is used for >

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-29 Thread Alexey Budankov
On 29.01.2019 15:13, Arnaldo Carvalho de Melo wrote: > Em Tue, Jan 29, 2019 at 02:39:00PM +0300, Alexey Budankov escreveu: >> Hi, >> On 29.01.2019 13:53, Arnaldo Carvalho de Melo wrote: >>> Em Tue, Jan 29, 2019 at 11:45:43AM +0100, Arnaldo Carvalho de Melo escreveu: Em Mon, Jan 28, 2019 at

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-29 Thread Arnaldo Carvalho de Melo
Em Tue, Jan 29, 2019 at 02:39:00PM +0300, Alexey Budankov escreveu: > Hi, > On 29.01.2019 13:53, Arnaldo Carvalho de Melo wrote: > > Em Tue, Jan 29, 2019 at 11:45:43AM +0100, Arnaldo Carvalho de Melo escreveu: > >> Em Mon, Jan 28, 2019 at 09:40:28AM +0300, Alexey Budankov escreveu: > >>> The patch

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-29 Thread Alexey Budankov
Hi, On 29.01.2019 13:53, Arnaldo Carvalho de Melo wrote: > Em Tue, Jan 29, 2019 at 11:45:43AM +0100, Arnaldo Carvalho de Melo escreveu: >> Em Mon, Jan 28, 2019 at 09:40:28AM +0300, Alexey Budankov escreveu: >>> The patch set implements runtime trace compression for record mode and >>> trace file

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-29 Thread Arnaldo Carvalho de Melo
Em Tue, Jan 29, 2019 at 11:45:43AM +0100, Arnaldo Carvalho de Melo escreveu: > Em Mon, Jan 28, 2019 at 09:40:28AM +0300, Alexey Budankov escreveu: > > The patch set implements runtime trace compression for record mode and > > trace file decompression for report mode. Zstandard API [1] is used for

Re: [PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-29 Thread Arnaldo Carvalho de Melo
Em Mon, Jan 28, 2019 at 09:40:28AM +0300, Alexey Budankov escreveu: > The patch set implements runtime trace compression for record mode and > trace file decompression for report mode. Zstandard API [1] is used for > compression/decompression of data that come from perf_events kernel

[PATCH v2 0/4] perf: enable compression of record mode trace to save storage space

2019-01-27 Thread Alexey Budankov
The patch set implements runtime trace compression for record mode and trace file decompression for report mode. Zstandard API [1] is used for compression/decompression of data that come from perf_events kernel data buffers. Realized -z,--compression_level=n option provides ~3-5x avg. trace